Book/Report

FZJ-2016-03542

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Weitere Untersuchungen an der konstruktiv verbesserten Kohlesteinisolierung Heft 1

Bröckerhoff, P. (Corresponding author)FZJ*

1977
Kernforschungsanlage Jülich, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/11712

Report No.: Juel-1458

Abstract: The kohlestein insulation has been modified to improve the thermal properties. Two of the five gaps between the pressure tube and the kohlestein were sealed by teflon. Thus a bypass-flow through the First test ring should be elirninated. The tests have been carried out in the high pressure wind tunnel up to a pressure of about 4o bars. Helium temperatures of about 400 °C were reached. When operating with air the temperatures were restricted to 300 °C because of the corrosion. The maximum velocity was about 2o m/s. The sealed test ring 2 exhibited Iower heat fluxes and a more uniform heat flux distribution. The heat fluxes were higher for the succeeding rings which were not sealed. The inspection of the -Lest tube revealed the cracking of four kohlestein rings. This damage is supposed to be due to thermal stresses..

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000 ; Retrocat)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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